package com.example.controller;

import com.example.pojo.Result;
import com.example.pojo.User;
import com.example.service.UserService;
import com.example.utils.JwtUtil;
import com.example.utils.Md5Util;
import com.example.utils.ThreadLocalUtil;
import jakarta.validation.constraints.Pattern;
import org.hibernate.validator.constraints.URL;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;

/**
 * @author huangzhiyang
 * @Date 2023/11/30
 * @Description
 */
@RestController
@RequestMapping("/user")
@Validated
public class UserController {
    @Autowired
    private UserService userService;

    @PostMapping("/register")
    public Result register(@Pattern(regexp = "^\\S{5,16}$") String username,
                           @Pattern(regexp = "^\\S{5,16}$") String password) {

        User user = userService.findByUserName(username);
        if (user == null) {
            userService.register(username, password);
            return Result.success();
        } else {
            return Result.error("用户名被占用");
        }

    }

    @PostMapping("/login")
    public Result<String> login(@Pattern(regexp = "^\\S{5,16}$") String username,
                                @Pattern(regexp = "^\\S{5,16}$") String password) {
        User loginUser = userService.findByUserName(username);
        if (loginUser == null) {
            return Result.error("用户名错误");
        }
        if (!Md5Util.getMD5String(password).equals(loginUser.getPassword())) {
            return Result.error("密码错误");
        }
        Map<String, Object> claims = new HashMap<>();
        claims.put("id", loginUser.getId());
        claims.put("username", loginUser.getUsername());
        JwtUtil.genToken(claims);
        return Result.success("jwt token令牌");
    }

    @GetMapping("/userInfo")
    public Result<User> userInfo(/*@RequestHeader(name = "Authorization") String token*/) {
//        Map<String, Object> stringObjectMap = JwtUtil.parseToken(token);
//
//        String username = (String) stringObjectMap.get("username");
        Map<String, Object> map = ThreadLocalUtil.get();
        String username = (String) map.get("username");
        User user = userService.findByUserName(username);
        return Result.success(user);
    }

    @PutMapping("/update")
    public Result update(@RequestBody @Validated User user) {
        userService.update(user);
        return Result.success();
    }

    /**
     * 更新头像
     *
     * @param avatarUrl
     * @return
     */
    @PatchMapping("/updateAvatar")
    public Result updateAvatar(@RequestParam @URL String avatarUrl) {
        userService.updateAvatar(avatarUrl);
        return Result.success();
    }

    /**
     * 更新密码
     *
     * @param params
     * @return
     */
    @PatchMapping("/updatePwd")
    public Result updatePwd(@RequestBody Map<String, String> params) {
        String oldPwd = params.get("old_pwd");
        String newPwd = params.get("new_pwd");
        String rePwd = params.get("re_pwd");
        if (!StringUtils.hasLength(oldPwd) || !StringUtils.hasLength(newPwd) || !StringUtils.hasLength(rePwd)) {
            return Result.error("缺少必要的参数");
        }
        Map<String, Object> map = ThreadLocalUtil.get();
        String username = (String) map.get("username");
        User user = userService.findByUserName(username);
        if (!user.getPassword().equals(Md5Util.getMD5String(oldPwd))) {
            return Result.error("原密码不正确");
        }
        if (!rePwd.equals(newPwd)) {
            return Result.error("两次填写的新密码不一致");
        }
        userService.updatePwd(newPwd);
        return Result.success("修改成功");
    }
}
